[Concerning differences in vision corrected by glasses in myopia between Americans and Japanese. (Appendix--comparison of refractive power with glasses)].
D044466:Asian People; D005139:Eyeglasses; D006801:Humans; D007564:Japan; D009216:Myopia / Q000628:therapy*; D012029:Refraction, Ocular; D013223:Statistics as Topic; D014481:United States; D014785:Vision, Ocular; D044465:White People